Home / 2,831.30-4,244.89-1,904.55

Finding the Fourth Proportional to 2,831.30, 4,244.89 and 1,904.55

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Solution

The fourth proportional to 2,831.30, 4,244.89 and 1,904.55 is: 2,855.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,831.30 : 4,244.89 = 1,904.55 : x
  2. Step 2: Convert to fraction form
    2,831.30/4,244.89 = 1,904.55/x
  3. Step 3: Cross multiply
    2,831.30x = 4,244.89 × 1,904.55
  4. Step 4: Simplify right side
    2,831.30x = 8,084,605.25
  5. Step 5: Solve for x
    x = 8,084,605.25/2,831.30
  6. Step 6: Final answer
    x = 2,855.44

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.